It's not known whether BBC America, the U.S. cable counterpart to all things BBC, will air the documentary. But considering the documentary focuses on an American city, wouldn't that be a smart idea?

As a side note, today's Guardian also rubs a little more salt in Detroit's wounds. Another documentary, "Tropic of Cancer," aired Sunday night on BBC2, and a writer compares that one -- which is about drug-trafficking in Mexico -- with "Requiem":

Guardian, March 15: There was an out-of-time beauty to the vast expanses of Detroit that
have been left derelict – they could pass off as the set for Blade
Runner. Street after street of deserted houses; lot after lot of
burned-out cars; acre after acre of abandoned car plants; the morning
rush hour that isn't – no one is going anywhere. But there is hope
among the people who have decided to work this land as nature reclaims
it. Slowly but surely, Detroit is returning to the farmland it once was.